US: XS (26–28) to United Kingdom Size 42–44

US: XS (26–28): Corresponds to a waist stretch range of 66–71 $\text{cm}$ (26–28 $\text{in}$), hip circumference of 84 $\text{cm}$ (33 $\text{in}$), thigh clearance of 48 $\text{cm}$ (18.9 $\text{in}$), and fit style Briefs, Trunks & Boxer Briefs.

United Kingdom Size 42–44: Corresponds to a waist stretch range of 106.7–111.8 $\text{cm}$ (42–44 $\text{in}$), hip circumference of 119.4 $\text{cm}$ (47 $\text{in}$), thigh clearance of 67 $\text{cm}$ (26.4 $\text{in}$), and fit style Extended Boxers & Plus Boxer Briefs.